A. breakdown of one or more separators
B. excess accumulation of sediment at the bottom of the cell
C. both (A) and (B)
D. none of the above
Related Mcqs:
- A dead storage battery can be revived by___________?
A. adding distilled water
B. adding so-called battery restorer
C. a dose of H2SO4
D. none of the above - The internal resistance of an alkali cell is nearly _________ times that of the lead-acid cell
A. two
B. three
C. four
D. five - The internal resistance of a lead-acid cell is that of Edison cell____________?
A. less than
B. more than
C. equal to
D. none of the above - The effect of sulphation is that the internal resistance__________?
A. increases
B. decreases
C. remains same
D. none of the above - Internal resistance of a cell is reduced by__________?
A. using vent plug to permit gas formed during discharge
B. increasing the plate area
C. putting plates very close together
D. all above methods - Internal resistance of a cell is due to___________?
A. resistance of electrolyte
B. electrode resistance
C. surface contact resistance between electrode and electrolyte
D. all above - Short circuiting of a cell may be caused____________?
A. buckling of plates
B. faulty separators
C. lead particles forming circuit between positive and negative plates
D. excessive accumulation of sediment
E. any one of above - Cell short circuit results in_________?
A. low sp. gravity electrolyte
B. abnormal high temperature
C. reduced gassing on charge
D. all above - Negative plate of an Edison cell is made of__________?
A. copper
B. lead
C. iron
D. silver oxide - Persons preparing electrolyte should wear___________?
A. goggles or other face shield
B. rubber
C. rubber boots and gloves
D. all above safety devices
